Results 31 to 40 of about 81,648 (268)

Tetrahydrobiopterin Synthesis in Rat Cardiac Myocytes; An Event Required for Cytokine-induced NO Generation

open access: yesPteridines, 1998
Cardiac myocytes are known to express the high-capacity inducible isoform of nitric oxide (NO) synthase (iNOS). Since tetrahydrobiopterin (BH4) is an essential cofactor for NO formation, we investigated whether BH4 synthesis is required for cytokine ...
Hattori Yoshiyuki   +3 more
doaj   +1 more source

Caveolae and the cardiac myocyte [PDF]

open access: yesCurrent Opinion in Physiology, 2018
Caveolae, invaginated lipid rafts, orchestrate signalling in the cardiac myocyte. Here we highlight advances in the field which are relevant to the role of caveolae in these cells. Recent analysis of the molecular organisation and structure of the coat complex, which lines the internal surface of caveolae, suggest a stable inner caveolin layer covered ...
Norman, R, Fuller, W, Calaghan, S
openaire   +3 more sources

Beating the odds: programming proliferation in the mammalian heart

open access: yesGenome Medicine, 2018
Editorial summary The heart is one of the least regenerative organs in the human body; adult cardiac myocytes divide at extremely low frequency. Therefore, meaningful induction of cardiac regeneration requires in-depth understanding of myocyte cell-cycle
Rajan Jain   +2 more
doaj   +1 more source

The Na/K-ATPase α1/Src Signaling Axis Regulates Mitochondrial Metabolic Function and Redox Signaling in Human iPSC-Derived Cardiomyocytes

open access: yesBiomedicines, 2023
Na/K-ATPase (NKA)-mediated regulation of Src kinase, which involves defined amino acid sequences of the NKA α1 polypeptide, has emerged as a novel regulatory mechanism of mitochondrial function in metazoans.
Liquan Cai   +7 more
doaj   +1 more source

Redox signaling in cardiac myocytes

open access: yesFree Radical Biology and Medicine, 2011
The heart has complex mechanisms that facilitate the maintenance of an oxygen supply-demand balance necessary for its contractile function in response to physiological fluctuations in workload as well as in response to chronic stresses such as hypoxia, ischemia, and overload.
Xavier Da Costa Dos Santos, Celio Santos   +4 more
openaire   +3 more sources

Cardiac Myocyte Exosome Isolation [PDF]

open access: yes, 2016
Exosomes are cell-derived small extracellular membrane vesicles (50-100 nm in diameter) actively secreted by a number of healthy and diseased cell types. Exosomes can mediate cellular, tissue, and organ level micro communication under normal and pathological conditions by shuttling proteins, mRNA, and microRNAs.
Malik, Zulfiqar A   +2 more
openaire   +4 more sources

Uptake and metabolism of the novel peptide angiotensin-(1-12) by neonatal cardiac myocytes. [PDF]

open access: yesPLoS ONE, 2011
Angiotensin-(1-12) [Ang-(1-12)] functions as an endogenous substrate for the productions of Ang II and Ang-(1-7) by a non-renin dependent mechanism. This study evaluated whether Ang-(1-12) is incorporated by neonatal cardiac myocytes and the enzymatic ...
Sarfaraz Ahmad   +4 more
doaj   +1 more source

PET Imaging of Cardiac Inflammation in Viral Myocarditis Using a DPP4‐Targeted Probe

open access: yesAdvanced Science, EarlyView.
This study describes a DPP4‐targeted PET probe for imaging myocardial inflammation by selectively targeting activated immune cells. Derived from the clinically approved small‐molecule inhibitor linagliptin, the probe demonstrates favorable biodistribution with specific cardiac uptake in myocarditis.
Wanhao Gao   +14 more
wiley   +1 more source

Mechano‐chemo‐transduction in cardiac myocytes [PDF]

open access: yesThe Journal of Physiology, 2017
AbstractThe heart has the ability to adjust to changing mechanical loads. The Frank–Starling law and the Anrep effect describe exquisite intrinsic mechanisms the heart has for autoregulating the force of contraction to maintain cardiac output under changes of preload and afterload.
Ye Chen‐Izu, Leighton T. Izu
openaire   +2 more sources

G3BP1 Succinylation at K413 is Critical for Cardiac Function by Modulating PI3K‐AKT‐mTOR Signal Axis

open access: yesAdvanced Science, EarlyView.
Schematic illustrating the impact of G3BP1 succinylation at K413 on cardiac function. In the healthy human heart, G3BP1 succinylation maintains homeostatic mTOR signaling. In patients with dilated cardiomyopathy (DCM) and heart failure (HF), G3BP1 de‐succinylation induces RagA expression and disrupts the binding of the TSC1/2 complex, leading to the ...
Yuan Zhang   +9 more
wiley   +1 more source

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